Part Number: 11578971 (Firing pin) Part Number: 11578974 (Selector) Part Number: 11578975 (Component) Part Number: 11578976 (Gasket) Part Number: 11578977 (Plunger) Part Number: 11578978 (Nut,plain,barrel) Part Number: 11578979 (Hardware) Part Number: 11578980 (Bushing) Part Number: 11578981 (Ring) Part Number: 11578983 (Key,machine) Part Number: 11578984 (Hardware) Part Number: 11578985 (Handle and firing mechanical) Part Number: 11578986 (Ring) Part Number: 11578987 (Grip)